Plumber&#39;s furnace



O. BERNZ PLUMBERS FURNACE Filed Au 26, 1926 3 Sheets-Sheet. 1

July 24, 1928.

7 l 7. D C,

g 7 k' 7 E f o a 5 H I E I ATTORNEYS 0'. BERNZ PLUMBERS FURNACE July 24, 1928. r 1,678,316

Filed Aug. 26, 1926 3 Sheets-Sheet 3 ATTbRNEYs Patented July 24, 1928.

OTTO BERNZ, or NEWARK, NEW JERSEY.

PLUMBERS FURNACE.

Application filed August 26,192 serial No. 131,585.

This invention relates in general to plumbe'rs furnaces and particularlyto that type of furnace which includes atank or reservoir 7 forliquid fuelysuch as gasoline,-which serves as a base forthefurnace and upon which is mounted a fuelpre heating coil, combustion cup, burner nozzle and" top plate or grid above the nozzle adapted to support an arti c'leor container to be heated, and a handle for carrying thefurnace.

v onefofbject ofthe invention is to provide a furnace of this character embodying novel and improved features of construction whereby'the handlernaybe utilized as a support in conjunctionwith the grid or top plate for su porting a soldering iron or the like upon'the furnaoe'in proper position to be he'atedjso tliatthe'soldering iron or the like-may be placed upon the furnace with-a ininiinuin of attentionand held against aodidental displacement "by jarring of the fur nacejor otlierwise," y i Another object is to provide a furnace of this character embodying novel and improved means "for deflecting the heat at the burner nozzle awayiroln the fuel reservoir or tank; said means also serving asa catch basin for any gasoline or the like'vvhich may averfiqwrrom; the combustion cup. 7

Other objects areito provide in such a 'furnace novel and improved means for mountingthe cornbustion cup, whereby it maybe easily and quiokly applied to and removed from a furnace without the necessity of removing nuts, bolts or like fastening members, and"to obtain other results and advantages'i as may he brought out bythe following description.

'Be'lierring to: the accompanying drawings, in which corresponding and like parts are designated throughout the several views by the same reference characters f Figure' 1 isi-a frdnt elevation of apluinberfs furnace embodying, the invention v Figure .2 isa side elevation of the furnace; Figure .3 is a top plan view of the. furnace with portions of the handle and of the tank brokenaway; i i Figure 4 is a longitudinal vertical sectional view through the burnerplate combustion cup and preheating coil;

Figure 25 a horizontal sectional view, ta ken on the line 55 of Figure 2; l

"Fi-gurefi is an enlarged tragn1entary'ver-- tical sectional view through the base plate and-the end of one otthesta-ndards for supporting the combustion cup and burner plate upon the tank; I

Figure '7 Isa tOP plan view of the base plate, and

F gure is an enlarged fragmentary transverse sectional view t Specifically describing the illustrated embodnnent of the invention, the furnace compr ses a tank or reservoir A which serves as a base for the furnace and fromthetop of which extend vertical rods or standardsB tothe top of which is secured as by nuts C atop plate or grid Beneath the to plate 1) is mounted a combustion cup E within which is arranged a preheating coil F to one end of which is connected a burner nozzle the other end of said "pre-h-eating co l being connected by a fuel pipe H through a valve I to thetop of the tank A. tank "is provided with a filling opening K and anair pump L bymeans o'fwhich the fuel "isforced through the fue'l pipe H and thepre-heating coil F. The general combination of 'thepartsabove described is known inthe art and no claim "to noveltyismade thereon, v

In accordance with the invention, the top plate I) is provided with a pair of diametri cally opposite pivotstuds' l to which the i p v I rough the connection of the fuel pipe tothe tan a arms of a'U-sh'aped handle 2 are pivotally of the Ihandle are provided with inturned fingers or projections?) so a'rrangedas to engage the underside of the top plate D when thehandleQ isswung in one direction sothat movement of the handle in said direction is liinited and the handle held in an inclined relation to thetop plate, as shown in Figures 2 ,and Set the drawings. When, the handle is in this position, it serves in connection with the top plate as a support for a solder ing iron or the like 0, shown by dot and dash lines in Figure 2. When the handle is swung in the direction opposite to that shown in Figure 2 the inturned fingers 3 clear the top plate and permit thehandle to swing downwardly against the side of the tank A, as shown by dotted lines in Figure 2.

Upon one of the vertical rods'or standards B is adjustably mounted a dished plate 4 which may be formed of sheet metal'and has at one side an eye 5 loosely slidable upon said one of the rods B and in which is fitted a' set screw 6. for clamping the eye fast to the rod. Upon this. plate 4 is supported the combustioncup E, and the upper end of v said combustion cup is provided with a plurality of longitudinally extending projections 7 which loosely enter corresponding openings 8 in the top plate D.

As above stated, the preheating coil F is arranged within the combustion cup E,

and the combustion cup is held'in proper:

relation to the'pre-heating coil by the plate 4 and the proj ections'7. To remove the combustioncup E a it is merely necessary to lower the plate 4 by loosening the set screw 6, which permits the combustion cup to move away from the top plate so that the projections 7 are withdrawn from the openingsS, whereupon the combustion cup may movedlaterally from beneath the top plate.

In some instances the burner nozzlexG is made removable without disturbing the combustion cup and pre-heat ing coil, as shown in the drawings, the nozzle pro ect1ng from one of the air. openings of the combus-v tion cupso as to be accessible from the outside of the cup. Accordingly, itiis necessary to remove this burner nozzle before the combust described.

In additionto serving as a support for the combustion cup, the plate 4 also catches any fuel which overflows from the pre-heating coil so as to preventrthe fuel from'fall- .i ing ontothe tank, becoming ignited thereon and producing heat which might result in an explosion of the tank. Also, the plate 4 serves to deflect the heat from the combustion cup and the burner nozzle away from the tank to prevent undue heating of 'the' latter. 7 i

The pre-heating coil F is carriedby the fuel pipe H and said fuel pipe is separable from the furnace to permit cleaning or 'renewing of the pro-heating coil. It is desirable to 'make the connection and disconnection of the fuel pipe as simple" as possible and with the least number of threaded joints. Accordingly, I have shown the valveI as having an exteriorly threaded outlet nipple 9 having a smooth end 10, and the fuel pipe has fixedly secured thereto a collar 11 to fit' tightly against the smooth end ion cup can be removed, as above 1O of thecnipple 9. A flanged nut or union 12 is loosely rotatable and longitudinally siidable upon'the fuel pipe and is threaded to engage the threaded nipple 9 so as to clamp thecolla-r 11 tightly against the nip- 'ple, as clearly shown in Figure '8 of the drawings. Preferably the fuel ipe has a reduced end 13 to accurately. t a corre- It is desirable to have as fewopnings as possible in a the fuel tank, and accordingly form the base plate 15 which serves as a connection between theyrods B and the "tank, of one piece of inalleableiron which has i11-v tegral threaded bosses 16 [to receive the threaded ends 17 of the, rods The plate 15 is brazed t0 the top of the tank A'so that all rivets and consequentiopenings are'eliminated as well as solder, which is sometimes used and is objectionableas being 'toosusceptibleto'heat. V i i MWhile I have shown and described the furnace as embodyingcertain details of construction and have shown the invention embodied in a certain type of furnace, it will be understood thatthe details'may be modi-M tied and changed and the invention embodied in other types of furnaces by those skilled in the art without departing from 10o thespirit or scope of the invention, Therefore, 'I do not desire to be understood as l mlting myself except as required by the following claims when construed in the light of the prior art; I

Having thus described the invention, what Iclaimis:j 1'. In a furnace, the combination of a frame, a burner thereonfa top plate dis- 1 posed over said burnerjandi'formed at its edges with "diametrically opposite pivot studs, and "a U-s'haped handle'having its arms pivotally mounted intermediate their lengths uponsaid pivot studs, the freeends of Said arms of the handle being termed with inturned fingers, and said studs, ina turned...,fingers and top plate being relatively arranged so that said fingers engage the I undersideof said topplate in spaced 'rela tion to said pivot studs when the handle is swung in one direction to hold said handle in'inclined relation to said topplate above the latter to support a solderingiron or the like, and said handle may swing in the oppositefldirection downwardly into an out-ofthe wa'y position at one side of said frame. '2; In a furnace,the combination of a base, a burner, a fuel preheating coil, atop plate over'said burner, astandard for supporting said top plateupon said base, a cup beneath said preheating coil, a dished plate mounted to move up and down upon said standard to support said cup and catch fuel which overflows from said cup, and means for fastoning said plate against movement on said standard.

3. In a furnace, the combination of a base, a burner, a fuel preheating coil, a combustion cup around said preheating coil having a projection thereon, a top plate above said 10 burner having an opening to loosely receive standard.

said projection upon movement of said cup toward said plate, a standard for supporting said top plate upon said base, a plate mounted to move 11 and down upon said standard and under ying said cup to support the same with said projection in said opening in the top plate, and means for fastening said plate against movement on said OTTO BERNZ. 

